Texas Instruments MSP430FG4616IPZR

Overview

MSP430FG4616IPZR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 92KB+256B flash, 4KB RAM, a 12-bit ADC with 12 channels, dual 12-bit DACs, three configurable op amps, integrated LCD driver (160 segments), two 16-bit timers (Timer_A3 and Timer_B7), USCI_A0 (UART/IrDA/SPI) and USCI_B0 (SPI/I²C), and hardware DMA. It targets portable medical devices and electronic metering systems requiring long battery life and analog signal conditioning.

For engineers reviewing the MSP430FG4616IPZR datasheet, MSP430FG4616IPZR pinout, MSP430FG4616IPZR application, or MSP430FG4616IPZR equivalent, key selection criteria include its 100-pin LQFP package, 1.8–3.6 V supply range, sub-µA standby current (1.3 µA), <6 µs wake-up from LPM3, and integrated LCD charge pump supporting up to 160 segments - all critical for low-power embedded instrumentation.

Technical Context

The MSP430FG4616IPZR implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling sub-6 µs wake-up from LPM3 and efficient code execution. Its peripheral set includes a 12-bit ADC with internal reference and autoscan, dual synchronized 12-bit DACs, and three independent operational amplifiers configurable as non-inverting/inverting amplifiers or comparators.

It integrates two universal serial interfaces: USCI_A0 supports UART (with auto-baud detection), IrDA, and SPI; USCI_B0 supports SPI and I²C. The device uses separate analog (AVCC/AVSS) and digital (DVCC/DVSS) supplies, with dedicated pins for LCD bias generation (LCDCAP, LCDREF, R03–R33) and SVS monitoring (SVSIN/SVSOUT).

Key Specifications

Pinout & Package

The MSP430FG4616IPZR is housed in a 100-pin LQFP (PZ) package measuring 14 mm × 14 mm, with exposed thermal pad (not electrically connected). Pin assignments follow TI's standard 100-pin PZ footprint for full compatibility across the FG461x family.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.

Compared with MSP430FG4617IPZR and MSP430FG4618IPZR, the MSP430FG4616IPZR offers optimal cost/performance balance for fixed-function metering and medical devices where 4KB RAM and 92KB flash are sufficient - avoiding over-provisioned memory without sacrificing analog integration or low-power performance.

Availability

MSP430FG4616IPZR is available at Aetrix Electronics and suitable for portable medical monitoring, smart electricity metering, and industrial test equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for MSP430FG4616IPZR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.

The MSP430FG461x series is part of TI's ultra-low-power microcontroller portfolio designed specifically for battery-operated measurement and display applications where analog integration, sub-µA power, and LCD support are essential.

FAQ

What is the maximum operating frequency of the MSP430FG4616IPZR?

The MSP430FG4616IPZR operates at up to 8 MHz using its digitally controlled oscillator (DCO), with typical active-mode performance specified at 1 MHz for current consumption metrics. The DCO supports fine-tuned frequency calibration and fast wake-up from low-power modes, enabling deterministic timing for real-time sensor sampling and LCD refresh cycles in the MSP430FG4616IPZR.

Does the MSP430FG4616IPZR support external crystals for precise timing?

Yes, the MSP430FG4616IPZR supports two external crystal oscillators: LFXT1 accepts standard or watch crystals (32.768 kHz for RTC) on XIN/XOUT pins, and XT2 accepts standard crystals up to 8 MHz on XT2IN/XT2OUT pins. Both are independently configurable and can drive ACLK, SMCLK, or MCLK - critical for accurate timekeeping and high-speed peripheral operation in the MSP430FG4616IPZR.

How many LCD segments can the MSP430FG4616IPZR drive, and what bias method does it use?

The MSP430FG4616IPZR drives up to 160 LCD segments using an integrated regulated charge pump, eliminating the need for external bias circuitry. It supports static, 2-, 3-, or 4-mux configurations with programmable voltage levels (VLCD) via R03–R33 pins and internal charge pump control (LCDCPEN). This capability is fully implemented in the MSP430FG4616IPZR and verified in TI's SLAS508K datasheet Section 5.14.

Can the operational amplifiers in the MSP430FG4616IPZR be used as comparators?

Yes, each of the three operational amplifiers in the MSP430FG4616IPZR can be configured as a comparator by disabling feedback and using the OAOUT signal directly. The op amp outputs (OA0O, OA1O, OA2O) are accessible on dedicated pins (e.g., P6.1, P6.3, P6.5) and support rail-to-rail output swing - enabling zero-crossing detection, window comparators, or analog thresholding without external components in the MSP430FG4616IPZR.

What debug interface does the MSP430FG4616IPZR support, and is JTAG available?

The MSP430FG4616IPZR supports the standard 4-wire JTAG interface (TCK, TMS, TDI/TCLK, TDO/TDI) on dedicated pins for full-featured debugging, flash programming, and boundary-scan testing. It also supports Spy-Bi-Wire (2-wire JTAG) for space-constrained designs. Both interfaces are natively supported by TI's MSP-FET and compatible IDEs - confirmed in the MSP430FG4616IPZR datasheet Sections 4.2 and 5.46.